Language also encodes our past. We want to know who we are. To know who we are, we have to know who we used to be. Consequently, our literature, written in the past, anchors us in that past.
When a film is created, it is created in a language, which is not only about words, but also the way that very language encodes our perception of the world, our understanding of it.
Why does there exist a global American entertainment industry, but there isn't an equivalent coming from France or Italy? This is the case simply because the English language opens the whole world to the American cinema.